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Finding the Fourth Proportional to 6,991.55, 10,494.26 and 6,206.03

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Solution

The fourth proportional to 6,991.55, 10,494.26 and 6,206.03 is: 9,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.55 : 10,494.26 = 6,206.03 : x
  2. Step 2: Convert to fraction form
    6,991.55/10,494.26 = 6,206.03/x
  3. Step 3: Cross multiply
    6,991.55x = 10,494.26 × 6,206.03
  4. Step 4: Simplify right side
    6,991.55x = 65,127,692.39
  5. Step 5: Solve for x
    x = 65,127,692.39/6,991.55
  6. Step 6: Final answer
    x = 9,315.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.